Hello!
I am currently running a setup with an Asus Rog Strix 1060 6GB and MSI 730 4GB. I am using the 1060 for gaming primarily. I am using 3 monitors in total and because of that, I decided to put the 730 in the setup. Unfortunately, the 730 is in a different group (According to Nvidia forums) and the drivers are no longer getting any updates. So I am running both cards on driver version 391.35. I've been using them for quite a while and recently I decided to push 1060 a bit more since its keeping low temperatures (60C at Max daily usage) and here comes the problem If I go higher than stock default settings, (1060) apply them and run a benchmark /stress test(MSI Kombustor 4) the entire system crashes immediately. For some odd reason even without any kind of overclock applied the system crashes as well when I run MSI Kombustor 4. So far I've tried reinstalling the driver using DDU, updating every driver on my system and windows update (just in case). I was wondering if that problem could be solved at all? If you have any suggestions please let me know!

Additional information:
Updating drivers to the latest version prevents the 730 from working (Fan spins, but no display output)
Games such as Riders of Icarus, Minecraft, League of Legends, Shadow Warrior, GTA V run well with no system crashes.
Overclocking software used: MSI Afterburner
Stress Test/Benchmark Test: MSI Kombustor 4
if more information is required please let me know and I will add it!
Thanks for reading my post, have a nice day!

Is it possible to have two different drivers on the same machine? I read that's not possible, or you mean a windows version of the driver? I've tried to make windows install its own driver after setting up the 1060, but the driver gets uninstalled and replaced ...

Titan

You should be able to run two different drivers at the same time. The only version of Windows that can't do that to my knowledge was vista. Back in the win2000 days i even ran an nvidia and ati card at the same time. If win10 isn't allowing it for some reason i suggest getting DDU (driver cleaner program) and start over.

You should be able to run two different drivers at the same time. The only version of Windows that can't do that to my knowledge was vista. Back in the win2000 days i even ran an nvidia and ati card at the same time. If win10 isn't allowing it for some reason i suggest getting DDU (driver cleaner program) and start over.

I tried to wipe out the drivers and start from scratch. I wiped out the drivers in safe mode, removed the 730 and updated the 1060, but I even without the 730 the whole system crashed when I ran the stress test. Afterward, I stopped the computer and plugged the 730 just to see what happens with the drivers. According to device manager (before 730), I was running at driver version 26.21.14.3160, but after the system restart with both GPUs the other two monitors weren't working (the once I have hooked up to the 730 ) so I updated the driver from device manager. It rollbacked to driver version 23.23.13.9135(on both cards). If you have any other suggestions please let me know.
I will add the exact PSU model at the original post.

Titan

I missed the crashes problem in the op. I thought you wanted a newer driver installed which the 730 wouldn't take. If the system crashes with only the 1060 then either it's a driver, power, or bad 1060/motherboard.

I suspected and you listed a junk psu. It could be the crashing problem. Kombuster is a benchmark problem so it will load your system harder than a game. (Unless it's crashing in game as well.) Canyou borrow a friend's psu? Just to use while you run kombuster and see if the crash happens?

I missed the crashes problem in the op. I thought you wanted a newer driver installed which the 730 wouldn't take. If the system crashes with only the 1060 then either it's a driver, power, or bad 1060/motherboard.

I suspected and you listed a junk psu. It could be the crashing problem. Kombuster is a benchmark problem so it will load your system harder than a game. (Unless it's crashing in game as well.) Canyou borrow a friend's psu? Just to use while you run kombuster and see if the crash happens?

I haven't experienced any crashes during gameplay yet. I thin I had a 500W PSU lying around, but I am not sure if it's going to work since it's not a well known/ famous brand. Sadly I don't think anyone of my friends can borrow me one since their systems are running most of the time. For now lets ignore the PSU problem(I was thinking that's the problematic part, but I wanted someone to confirm it as well) and try to fix the driver rollback issue.

Titan

If you get crashes when benching it should be a power problem. Your psu can't out out 600W. I'd bet on it. My general rule of thumb is assume slightly more than half is possible. 350W or so. With a maxed out cpu and gpu you simply don't have the power needed. Gaming doesn't max the cpu and gpu which is why it doesn't happen when gaming.

If you get crashes when benching it should be a power problem. Your psu can't out out 600W. I'd bet on it. My general rule of thumb is assume slightly more than half is possible. 350W or so. With a maxed out cpu and gpu you simply don't have the power needed. Gaming doesn't max the cpu and gpu which is why it doesn't happen when gaming.

Thanks for the useful information, I didn't know that Kombustor is testing the limits of the system that hard, I thought its just another benchmark tool. I will try to get a better PSU in the future and stay away from overclocking for now, but what do you think about the drivers issue? Is it possible to solve it or I will have to stick to the 391.35 if I want to use both cards?

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